Electric room heater



Dc. 23, 1947. p, w, w 2,433,196

ELECTRIC ROOM HEATER .7 Filed Sept. 12, 1944 3 Sheets-Sheet I Inventor PA UL 14 B30 WNE,

Dec. 23, '1947. P. w. BROWNE ELECTRIC ROOM HEATER Filed Sept. 12, 1944 3 Sheets-Sheet 2' 4 I I-I/t/ I) I rmentor Dec 23, ,1947. P. w. BROWNE. 1'. 2,433 196 ELECTRIC ROOM HEATER Filed Sept. 12, 1944 3 Sheets-Sheet 3 k%tg' d Inventor PA UL kl BROWNE,

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Patented Dec. 23, 1947 ELECTRIC ROOM HEATER Paul W. Browne, Roodhouse, 111., assignor of five per cent to Coy H. Mansfield and fifteen per cent to Charles A. Billings, both of Roodhouse,

Application September 12, 1944, Serial No. 553,731

2 Claims.

The present invention relates to new and useful improvements in electric heating units of a type commonly knOWn as space heaters and the invention has for its primary object to provide inner and outer jackets spaced from each other with electrical heating means for heating the inner jacket and means for circulating air between the jackets for discharge into the room for heating the latter.

A further important object of the present invention is to provide an electric heating element mounted within the .inner jacket, the heating element including illuminating means at the base thereof, and a magnifying lens at the top thereof adapted to project light against the top of the inner jacket and providing means for adjusting the top of the heating element relative to the top of said inner jacket.

A still further object is to provide an apparatus of this character of simple and practical construction, which is efficient and reliable in performance, relatively inexpensive to manufacture and maintain in operation and otherwise well adapted for the purposes for which the same is intended.

Other objects and advantages reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming part hereof, wherein like numerals refer to like parts throughout, and in which:

Figure 1 is a side elevational view of the heating unit.

Figure 2 is a similar view showing the adjusting means for the heating element.

Figure 3 is a vertical sectional view taken substantially on a line 33 of Figure 2.

Figure 4 is a transverse sectional view taken substantially on a line 4--4 of Figure 3.

Figure 5 is a fragmentary vertical sectional view illustrating a modified form of heating element, and

Figure 6 is a bottom plan view of the heating element of the form illustrated in Figure 5.

Referring now to the drawings in detail and first with respect to the form of the invention illustrated in Figures 1 to 4, inclusive, the numeral 5 designates an inner jacket, preferably constructed of light weight metal with its lower end open and adapted to rest on the floor of a, room and provided with a dome-shaped top 6. An outer jacket 1 is mounted in spaced relation over the top and upper portion of the side walls of the inner jacket 5 by means of lugs 8, the

lower edge of the outer jacket I terminating;

above the floor on which the inner jacket is mounted and being open to permit escape of air downwardly between the side walls of the inner and outer jackets as shown in Figure 3 of the drawings. The top of the outer jacket 1 is formed with a cylindrical housing 9 having air inlet openings NJ in the sides thereof and within the housing is positioned a fan H operated by a motor l2 supported on top of the housing 9. The fan II is arranged to draw air into the opening l0 and to force the same downwardly between the inner and outer j c et and outwardly through the lower edge of the outer jacket.

The inner jacket 5 is heated by means of an electric heating unit designated generally at l3 and which is of substantially cylindrical construction and spaced from the walls of the inner jacket 5 by means of lugs [4 formed on the inner walls of said inner jacket, the heating unit being free of the lugs to permit vertical adjustment of the unit in the jacket.

The walls of the heating unit l3 are preferably constructed of glass, or similar material, for passing heat therethrough by radiation, but may be formed of metal for passing heat through the same by conduction and the top of the heating unit It is closed by a plano-convex magnifying lens [5 the purpose of which will presently appear.

An electric heating element I 6 is attached to the inner side walls of the heating unit I3 by means of lugs l'!, the heating elements including sections extending vertically of the walls of the heating unit [3 and th heating element being electrically connected to a suitable source of power by means of the wires I8. The heating element I6 is of the type that glows and the light rays therefrom are collected and distributed by the lens 16 against the top 6 of the jacket 5.

An inverted dome-shaped bottom I9 is secured to the lower edges of the heating unit I3, the bottom wall l9 being formed with a series of openings l9 to permit the escape of heated air from the heating unit l3 upwardly within the inner jacket 5. The lower portion of the bottom member I9 is provided with a reflector 20 secured in position by latch members 2| and at the center of the reflector 20 is mounted an electric lamp 22 projecting upwardly from the bottom IQ of the heating unit, the lamp being suitably connected to a source of current.

A ring member 23 is secured to the outer surface of the bottom l9 having pins 24 at diametrically opposite sides of the bottom and projecting into slots 25 formed in the upwardly inclined ends 26 of levers pivoted on a pin 21 extending transversely of the bottom portion of the inner jacket and to which a lever 28 is attached extending outwardly of the jacket with a vertical screw 29 threaded in the outer end of the lever 28, the screw being rotatably mounted in a bearing 39 on the outside of the jacket 5 and formed at its upper end with a manipulating knob 3| to vertically adjust the heating unit l3 in accordance with the manipulation of the screw 29. By ad- J'usting the heating unit [3, the air space between the top of the jacket 5 and sa d unit may be varied to achieve quick or slow heating.

In the form of the invention illustrated in Fi ures 5 and 6, the top of the heating unit 32 is closed by a magnifying lens 33 to the underside of which a heating coil 34 is attached by means of the lugs 35. Otherwise, this form of the invention is similar to that heretofore explained.

In the operation of the device heated air from the heating element I3 will rise into the inner jacket 5 for heating the top and side walls thereof, the heated air being forced downwardly and outwardly of the bottom of the outer jacket 1 by the electric fan I 1'. Light rays from the lamp 22 will be projected upwardly and collected and distributed by the lens I5 against the inside of the top 6 of the jacket 5 to further heat the latter.

It isbelieved that the details of construction and manner of use of the device will be readily understood from the foregoing without further detailed explanation.

Having thus described the invention, what is claimed is:

1. An electric heater comprising inner and outer spaced apart jackets closed at their top portions, said outer jacket terminating above the bottom of the inner jacket, means for circulating atmospheric air under forced draft downwardly between the walls of the jackets from the tops thereof and outwardly at the lower edge of the outer jacket, and means within the inner jacket for heating the latter.

2. An electric heater comprising inner and outer spaced apart jackets closed at their top portions, said outer jacket terminating above the inner jacket, means for circulating atmospheric air under forced draft downwardly between the walls of the jackets from the tops thereof and outwardly at the lower edge of the outer jacket, an electric heating unit in the inner jacket spaced from the top of said inner jacket, and means for vertically adjusting said heating unit relative to the inner jacket to vary the air space between the top of said unit and the top of said inner jacket.

PAUL W. BROWNE.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,679,271 Sanctuary July 31, 1928 1,754,232 Fisher Apr. 15, 1930 FOREIGN PATENTS Number Country Date 647,114 France Nov. 20, 1928 

